Coal was the world's fastest-growing energy source, thanks to China and India

Average oil prices exceeded $100 per barrel for a third consecutive year, despite massive supply growth in the US.

But our favorite chart is here: It shows the price of oil every year since Abraham Lincoln became president. It's annotated with major oil shock events — though the first major event cited, the oil gusher in Titusville, Pennsylvania is slightly misleading. That in itself did not cause markets to surge, but rather a host of factors including the Civil War and the changing face of transport in America.